Technical Field
[0001] The disclosure relates to a docking station, more particularly to a docking station
for an electronic device.
Background
[0002] In general, a notebook computer can be placed on a docking station and docked to
electrical connectors of the docking station, such that the functions of the notebook
computer can be expanded when expansion sockets of the docking station are connected
to external devices.
[0003] After the notebook computer is placed on the docking station, a support plate of
the docking station resists the weight of the notebook computer, such that the support
plate may be deformed as time goes by. As a result, it would be difficult for the
notebook computer to be accurately docked to the electrical connectors of the docking
station, which causes an unsuccessful connection between the notebook computer and
the electrical connectors of the docking station. Therefore, how to solve the aforementioned
issue is one of the crucial topics in this field.
SUMMARY
[0004] The disclosure provides a docking station which is capable of preventing the unsuccessful
connection between the notebook computer and the electrical connectors of the docking
station.
[0005] One embodiment of the disclosure provides a docking station. The docking station
is configured for an electronic device to be docked thereto. The docking station includes
a casing, a circuit board and at least one electrical connector. The casing has an
accommodation space, an upper surface and at least one protrusion structure. The upper
surface faces away from the accommodation space, the protrusion structure protrudes
from the upper surface, the protrusion structure has a wide portion and a narrow portion
connected to each other, and a width of the wide portion is greater than a wide of
the narrow portion. The circuit board is located in the accommodation space. The electrical
connector protrudes from the upper surface of the casing and electrically connected
to the circuit board.
[0006] Another embodiment of the disclosure provides a docking station. The docking station
is configured for an electronic device to be docked thereto. The docking station includes
a casing, a circuit board and at least one electrical connector. The casing has an
accommodation space, an upper surface and at least one protrusion structure. The upper
surface faces away from the accommodation space, the protrusion structure protrudes
from the upper surface, the protrusion structure has a side surface, the side surface
has a first straight part, a turning part and a second straight part, the first straight
part is connected to the second straight part via the turning part, the first straight
part and the second straight part extend towards a same direction, and an extension
direction of the turning part is non-parallel to extension directions of the first
straight part and the second straight part. The circuit board is located in the accommodation
space. The electrical connector protrudes from the upper surface of the casing and
electrically connected to the circuit board.
[0007] According to the docking station as disclosed in the above embodiment, the protrusion
structure protrudes from the upper surface of the casing, and the protrusion structure
has the wide portion with larger width and the narrow portion with smaller width,
such that the structural strength of the casing can be enhanced so as to prevent the
casing supporting the electronic device from being deformed due to the weight of the
electronic device. Therefore, the electronic device is ensured to be accurately docked
to the electrical connectors.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The present disclosure will become better understood from the detailed description
given herein below and the accompanying drawings which are given by way of illustration
only and thus are not intending to limit the present disclosure and wherein:
FIG. 1 is a perspective view of an electronic device and a docking station according
to one embodiment of the disclosure;
FIG. 2 is an exploded view of the electronic device and the docking station in FIG.
1;
FIG. 3 is a partial exploded view of the docking station in FIG. 1;
FIG. 4 is a top view of the docking station in FIG. 1;
FIG. 5 is a partial rear view of the docking station in FIG. 1; and
FIG. 6 is a partial cross-sectional view of the docking station in FIG. 4 taken along
a line 6-6.
DETAILED DESCRIPTION
[0009] In the following detailed description, for purposes of explanation, numerous specific
details are set forth in order to provide a thorough understanding of the disclosed
embodiments. It will be apparent, however, that one or more embodiments may be practiced
without these specific details. In other instances, well-known structures and devices
are schematically shown in order to simplify the drawing.
[0010] In addition, the terms used in the present disclosure, such as technical and scientific
terms, have its own meanings and can be comprehended by those skilled in the art,
unless the terms are additionally defined in the present disclosure. That is, the
terms used in the following paragraphs should be read on the meaning commonly used
in the related fields and will not be overly explained, unless the terms have a specific
meaning in the present disclosure.
[0011] Refer to FIGS. 1 to 3, where FIG. 1 is a perspective view of an electronic device
20 and a docking station 10 according to one embodiment of the disclosure, FIG. 2
is an exploded view of the electronic device 20 and the docking station 10 in FIG.
1, and FIG. 3 is a partial exploded view of the docking station 10 in FIG. 1.
[0012] In this embodiment, the docking station 10 is configured for the electronic device
20 to be docked thereto. The electronic device 20 is, for example, a notebook computer.
[0013] The docking station 10 includes a casing 100, a circuit board 200 and two electrical
connectors 300. In addition, the docking station 10 may further include a floating
seat 400.
[0014] Then, refer to FIGS. 2 to 6, where FIG. 4 is a top view of the docking station 10
in FIG. 1, FIG. 5 is a partial rear view of the docking station 10 in FIG. 1, and
FIG. 6 is a partial cross-sectional view of the docking station 10 in FIG. 4 taken
along a line 6-6.
[0015] The casing 100 includes a base 110 and a cover 120 assembled with each other, and
the base 110 and the cover 120 together form an accommodation space 130. The cover
120 includes a support portion 121. The support portion 121 has an upper surface 1211,
an outer circumferential surface 1212 and four protrusion structures 1213 and 1214.
The upper surface 1211 faces away from the accommodation space 130, and the outer
circumferential surface 1212 is connected to a periphery of the upper surface 1211.
The outer circumferential surface 1212 has a front part 1212a, a rear part 1212b and
two lateral parts 1212c. The front part 1212a is located opposite to the rear part
1212b, and the two lateral parts 1212c are located opposite to each other and are
connected to the front part 1212a and the rear part 1212b. The four protrusion structures
1213 and 1214 protrude from the upper surface 1211. The two protrusion structures
1213 are located opposite to each other and extend along a direction from the front
part 1212a towards the rear part 1212b of the outer circumferential surface 1212.
The two protrusion structures 1214 extend along a direction from one of the lateral
parts 1212c to the other and are connected to the two protrusion structures 1213.
The two protrusion structures 1213 and the two lateral parts 1212c of the outer circumferential
surface 1212 form two recesses 1215, respectively, and the protrusion structures 1213,
one of the protrusion structures 1214 and the rear part 1212b of the outer circumferential
surface 1212 form another recess 1216, where a depth D1 of each of the recess 1215
is greater than a depth D2 of the recess 1216. In addition, the four protrusion structures
1213 and 1214 together form another recess 1217.
[0016] In this embodiment, the protrusion structures 1213 are the same in structure, and
thus the following descriptions merely introduce one of them. The protrusion structure
1213 has a wide portion 1213a, a tapered portion 1213b and a narrow portion 1213c.
The wide portion 1213a is located closer to the front part 1212a of the outer circumferential
surface 1212 than the tapered portion 1213b and the narrow portion 1213c. The tapered
portion 1213b is located between and connected to the wide portion 1213a and the narrow
portion 1213c. A width W1 of the wide portion 1213a is greater than a width W2 of
the narrow portion 1213c, and the width W2 of the narrow portion 1213c is, for example,
smaller than a half of the width W1 of the wide portion 1213a, but the disclosure
is not limited thereto. A width of the tapered portion 1213b gradually decreases along
a direction from the wide portion 1213a towards the narrow portion 1213c. In addition,
the protrusion structure 1213 further has a side surface 1213d. The side surface 1213d
is, for example, an inclined surface. The side surface 1213d is connected to the upper
surface 1211 and extends from the wide portion 1213a to the narrow portion 1213c.
The side surface 1213d has a first straight part 12131d, a turning part 12132d and
a second straight part 12133d. The first straight part 12131d, the turning part 12132d
and the second straight part 12133d respectively correspond to the wide portion 1213a,
the tapered portion 1213b and the narrow portion 1213c. The first straight part 12131d
is connected to the second straight part 12133d via the turning part 12132d. The first
straight part 12131d and the second straight part 12133d extend along a same direction,
and the extension direction of the turning part 12132d is non-parallel and non-perpendicular
to the extension surfaces of the first straight part 12131d and the second straight
part 12133d.
[0017] In this embodiment, the support portion 121 of the cover 120 further has an accommodation
recess 1218 and a first positioning protrusion 1219. The accommodation recess 1218
is recessed from the bottom of the recess 1217, and the first positioning protrusion
1219 is located in the accommodation recess 1218. Moreover, the cover 120 further
includes two outer positioning portions 122. The two outer positioning portions 122
are respectively located at two opposite corners of one side of the support portion
121, and each of the outer positioning portions 122 is connected to the rear part
1212b and one of the lateral part 1212c of the outer circumferential surface 1212
and protrudes from the upper surface 1211. Each of the outer positioning portions
122 has a second positioning protrusion 1221. Distances from the first positioning
protrusion 1219 to the two second positioning protrusions 1221 are different from
each other; that is, one of the second positioning protrusions 1221 is located closer
to the first positioning protrusion 1219 than the other. The first positioning protrusion
1219 and the two second positioning protrusions 1221 are configured to roughly position
the electronic device 20 during the placement of the electronic device 20 onto the
casing 100, which will be further introduced in the later paragraphs.
[0018] In this embodiment, the support portion 121 of the cover 120 further has a plurality
of first through holes 1220a, a second through hole 1220b and two third through holes
1220c. The first through holes 1220a are in an array arrangement. The second through
hole 1220b is located between two rows of the first through holes 1220a, and the two
third through holes 1220c are respectively located at two opposite sides of the second
through hole 1220b. The first through holes 1220a, the second through hole 1220b and
the third through holes 1220c are located between and connected to the accommodation
recess 1218 and the accommodation space 130.
[0019] The floating seat 400 includes a metal substrate 410, a support plate 420 and a plurality
of fasteners 430. In addition, the floating seat 400 further includes two positioning
components 440.
[0020] The metal substrate 410 is partially located in the accommodation space 130. The
metal substrate 410 has a plurality of fastening structures 411, and the fastening
structures 411 are, for example, female threaded pillars. The fastening structures
411 are respectively located in the first through holes 1220a, and sizes of the fastening
structures 411 are respectively smaller than sizes of the first through holes 1220a.
[0021] A size of the support plate 420 is slightly smaller than a size of the accommodation
recess 1218. The support plate 420 is movably located in the accommodation recess
1218. The support plate 420 has a through hole 421, a plurality of first openings
422, two second openings 423 and two third openings 424. A size of the through hole
421 is greater than a size of the first positioning protrusion 1219, and the first
positioning protrusion 1219 is disposed through the through hole 421 of the support
plate 420. The first openings 422 respectively correspond to the first through holes
1220a, the second openings 423 correspond to the second through hole 1220b, and the
third openings 424 respectively correspond to the third through holes 1220c.
[0022] The fasteners 430 are, for example, screws or bolts. Each of the fasteners 430 has
a fastening portion 431. The fastening portions 431 are respectively disposed through
the first openings 422 of the support plate 420 and screwed into the fastening structures
411 of the metal substrate 410.
[0023] The circuit board 200 is located in the accommodation space 130 and fixed to the
metal substrate 410. The two electrical connectors 300 are disposed on the circuit
board 200 and are disposed through the second through hole 1220b of the support portion
121 of the cover 120 and the two second openings 423 of the support plate 420 so as
to be exposed to outside. A size of the second through hole 1220b of the support portion
121 of the cover 120 is greater than an overall size of the two electrical connectors
300. As shown in FIG. 5, a height H1 of the second positioning protrusion 1221 relative
to the top surface 1213e of the protrusion structure 1213 is greater than a height
H2 of the electrical connector 300 relative to the top surface 1213e of the protrusion
structure 1213. Preferably, the height H1 may be above three times greater than the
height H2. For example, the height H1 may be about 22.00 mm, and the height H2 may
be about 2.99 mm.
[0024] The positioning components 440 are, for example, pillar made of metal material. The
positioning components 440 and the metal substrate 410 are, for example, made of a
single piece. The positioning components 440 are respectively disposed through the
third through holes 1220c of the support portion 121 of the cover 120 and the third
openings 424 of the support plate 420.
[0025] In this embodiment, the docking station 10 may further include a plurality of buffering
components 500, and the metal substrate 410 may further have a plurality of through
holes 412. Each of the buffering components 500 includes a screw 510 and a spring
520. Sizes of the through holes 412 of the metal substrate 410 are greater than sizes
of the screws 510. The screws 510 are respectively disposed through the springs 520
and the through holes 412 of the metal substrate 410 and are screwed into the support
portion 121 of the cover 120. Two opposite ends of each of the springs 520 respectively
press against one side of the metal substrate 410 located opposite to the circuit
board 200 and a head portion of one screw 510. The springs 520 are configure to force
the metal substrate 410 to move away from the base 110 for lifting up the metal substrate
410.
[0026] In this embodiment, the sizes of the first through holes 1220a are greater than the
sizes of the fastening structures 411 which are configured for the fastening portions
431 of the fasteners 430 to be screwed therein, the size of the second through hole
1220b is greater than the overall size of the two electrical connectors 300, and the
sizes of the through holes 412 of the metal substrate 410 are greater than the sizes
of the screws 510, such that the floating seat 400, the circuit board 200 and the
electrical connectors 300 on the floating seat 400 can be moved relative to the casing
100 along directions A and B which are perpendicular to a normal line N of the upper
surface 1211 for helping the electronic device 20 to be mounted on the docking station
10. In addition, the buffering components 500 enable the floating seat 400, the circuit
board 200 and the electrical connector 300 on the floating seat 400 to be movable
relative to the casing 100 along a direction C which is parallel to the normal line
N of the upper surface 1211 for helping the electronic device 20 to be mounted on
the docking station 10. The following paragraph will introduce the placement process
of the electronic device 20 on the docking station 10.
[0027] Firstly, two opposite corners of one side of the electronic device 20 are moved towards
the two second positioning protrusions 1221 to be in contact with the two second positioning
protrusions 1221 in an inclined manner, then the electronic device 20 is laid on the
docking station 10, such that the first positioning protrusion 1219 is inserted into
a positioning recess 21 of the electronic device 20. Then, the electronic device 20
is slightly moved, such that the two positioning components 440 are respectively inserted
into two positioning insertion holes 22 of the electronic device 20. As a result,
the placement process of the electronic device 20 on the docking station 10 is completed.
[0028] In this embodiment, the height H1 of the second positioning protrusion 1221 relative
to the top surface 1213e of the protrusion structure 1213 is greater than the height
H2 of the electrical connector 300 relative to the top surface 1213e of the protrusion
structure 1213, such that the position of the second positioning protrusion 1221 can
be easily to be seen, thereby helping the electronic device 20 to be mounted on the
docking station 10.
[0029] Furthermore, the cooperation of the first positioning protrusion 1219 of the support
portion 121 and the second positioning protrusions 1221 of the outer positioning portion
122 of the cover 120 can roughly position the electronic device 20 during the preliminary
of the installation of the electronic device 20 on the docking station 10 for helping
the electronic device 20 to be accurately positioned in the later process. Note that
the first positioning protrusion 1219 and the second positioning protrusions 1221
are optional structures and may be omitted in some other embodiments.
[0030] In this embodiment, the floating seat 400, the circuit board 200 and the electrical
connector 300 on the floating seat 400 can be moved relative to the casing 100, and
the relative positions of the two positioning components 440 and the two electrical
connectors 300 are stationary, such that the movable floating seat 400 can absorb
an assembling tolerance between two electrical connectors 23 of the electronic device
20 and the two electrical connectors 300 of the docking station 10. Therefore, after
the two positioning components 440 are respectively inserted in to the two positioning
insertion holes 22 of the electronic device 20, the two electrical connectors 23 of
the electronic device 20 are accurately docked to the two electrical connectors 300
of the docking station 10.
[0031] In addition, in this embodiment, since the fasteners 430 are screwed into the metal
substrate 410, the structural strength between the fasteners 430 and the metal substrate
410 can be ensured to be strong enough, thereby preventing the metal substrate 410
from being damaged at the positions where the fasteners 430 are screwed due to a downward
force when the electronic device 20 is placed on the docking station 10 or another
external force.
[0032] In this embodiment, the buffering components 500 enable the floating seat 400, the
circuit board 200 and the electrical connector 300 on the floating seat 400 to be
moved towards the base 110 to absorb an impact during the placement of the electronic
device 20 on the docking station 10. Therefore, the two electrical connectors 23 of
the electronic device 20 can be more stably docked to the two electrical connectors
300 of the docking station 10.
[0033] Note that the buffering components 500 and the positioning components 440 are optional
components and may be omitted in some other embodiments.
[0034] In addition, the support plate 420 of the floating seat 400 is not restricted to
being movably located in the accommodation recess 1218 of the support portion 121
of the casing 100. In some other embodiments, the support portion of the casing may
not have the accommodation recess, and the support plate may be directly and movably
located in the recess 1217 formed by the four protrusion structures 1213 and 1214.
Furthermore, the two protrusion structures 1214 are optional structures and may be
omitted in some other embodiments, and the support plate may be directly and movably
located at the upper surface of the support portion of the cover.
[0035] Moreover, the floating seat 400 may be an optional component and may be omitted in
some other embodiments.
[0036] In this embodiment, the protrusion structures 1213 protrude from the upper surface
1211 of the casing 100, and each protrusion structure 1213 has the wide portion 1213a
with larger width and the narrow portion 1213c with smaller width, such that the structural
strength of the casing 100 can be enhanced so as to prevent the casing 100 supporting
the electronic device 20 from being deformed due to the weight of the electronic device
20. Therefore, the electronic device 20 is ensured to be accurately docked to the
electrical connectors 300, and the lifespan of the docking station 10 can be elongated.
[0037] Moreover, the first straight part 12131d and the second straight part 12133d of the
side surface 1213d of the protrusion structure 1213 extend along the same direction,
and the extension direction of the turning part 12132d of the side surface 1213d of
the protrusion structure 1213 is non-parallel and non-perpendicular to the extension
directions of the first straight part 1213 1d and the second straight part 12133d,
such that an area of the side surface 1213d of the protrusion structure 1213 can be
increased. Therefore, the support portion 121 of the cover 120 can have a stronger
structural strength to resist the weight of the electronic device 20, and the lifespan
of the docking station 10 can be further elongated.
[0038] Note that the extension direction of the turning part 12132d is not restricted to
being non-perpendicular to the extension directions of the first straight part 12131d
and the second straight part 12133d; in some other embodiments, the extension direction
of the turning part may be perpendicular to the extension directions of the first
straight part and the second straight part; that is, the protrusion structure may
merely have the wide portion and the narrow portion but without the tapered portion.
[0039] Note that the quantity of the electrical connectors 300 is not restricted and may
be modified to be one.
[0040] According to the docking station as disclosed in the above embodiment, the protrusion
structures protrude from the upper surface of the casing, and each protrusion structure
has the wide portion with larger width and the narrow portion with smaller width,
such that the structural strength of the casing can be enhanced so as to prevent the
casing supporting the electronic device from being deformed due to the weight of the
electronic device. Therefore, the electronic device is ensured to be accurately docked
to the electrical connectors.
[0041] Moreover, the first straight part and the second straight part of the side surface
of the protrusion structure extend along the same direction, and the extension direction
of the turning part of the side surface of the protrusion structure is non-parallel
and non-perpendicular to the extension directions of the first straight part and the
second straight part, such that an area of the side surface of the protrusion structure
can be increased. Therefore, the support portion of the cover can have the stronger
structural strength to resist the weight of the electronic device, and the lifespan
of the docking station can be elongated.
[0042] Furthermore, the cooperation of the first positioning protrusion of the support portion
and the second positioning protrusions of the outer positioning portion of the cover
can roughly position the electronic device during the preliminary of the installation
of the electronic device on the docking station for helping the electronic device
to be accurately positioned in the later process.
[0043] In addition, the floating seat, the circuit board and the electrical connector on
the floating seat can be moved relative to the casing, and the relative positions
of the two positioning components and the two electrical connectors are stationary,
such that the movable floating seat can absorb an assembling tolerance between two
electrical connectors of the electronic device and the two electrical connectors of
the docking station. Therefore, after the two positioning components are respectively
inserted into the two positioning insertion holes of the electronic device, the two
electrical connectors of the electronic device are accurately docked to the two electrical
connectors of the docking station.
[0044] Since the fasteners are screwed into the metal substrate, the structural strength
between the fasteners and the metal substrate can be ensured to be strong enough,
thereby preventing the metal substrate from being damaged at the positions where the
fasteners are screwed due to a downward force when the electronic device is placed
on the docking station or another external force.
[0045] The buffering components enable the floating seat, the circuit board and the electrical
connector on the floating seat to be moved towards the base to absorb an impact during
the placement of the electronic device on the docking station. Therefore, the two
electrical connectors of the electronic device can be more stably docked to the two
electrical connectors of the docking station.
[0046] It will be apparent to those skilled in the art that various modifications and variations
can be made to the present disclosure. It is intended that the specification and examples
be considered as exemplary embodiments only, with a scope of the disclosure being
indicated by the following claims and their equivalents.
1. A docking station (10), configured for an electronic device (20) to be docked thereto,
comprising:
a casing (100), having an accommodation space (130), an upper surface (1211) and at
least one protrusion structure (1213), wherein the upper surface (1211) faces away
from the accommodation space (130), the at least one protrusion structure (1213) protrudes
from the upper surface (1211), the at least one protrusion structure (1213) has a
wide portion (1213a) and a narrow portion (1213c) connected to each other, and a width
(W1) of the wide portion (1213a) is greater than a width (W2) of the narrow portion
(1213c);
a circuit board (200), located in the accommodation space (130); and
at least one electrical connector (300), protruding from the upper surface (1211)
of the casing (100) and electrically connected to the circuit board (200).
2. The docking station (10) according to claim 1, wherein the width (W2) of the narrow
portion (1213c) is smaller than a half of the width (W1) of the wide portion (1213a).
3. The docking station (10) according to claim 1, wherein the at least one protrusion
structure (1213) further has a side surface (1213d), the side surface (1213d) is connected
to the upper surface (1211) and extends from the wide portion (1213a) to the narrow
portion (1213c), the side surface (1213d) has a first straight part (12131d), a turning
part (12132d) and a second straight part (12133d), the first straight part (12131d)
is connected to the second straight part (12133d) via the turning part (12132d), the
first straight part (12131d) and the second straight part (12133d) extend towards
a same direction, and an extension direction of the turning part (12132d) is non-parallel
to extension directions of the first straight part (12131d) and the second straight
part (12133d).
4. The docking station (10) according to claim 3, wherein the extension direction of
the turning part (12132d) is non-perpendicular to the extension directions of the
first straight part (12131d) and the second straight part (12133d).
5. The docking station (10) according to claim 1, wherein the at least one protrusion
structure (1213) further has a tapered portion (1213b), two opposite sides of the
tapered portion (1213b) are respectively connected to the wide portion (1213a) and
the narrow portion (1213c), and a width of the tapered portion (1213b) gradually decreases
along a direction from the wide portion (1213a) towards the narrow portion (1213c).
6. The docking station (10) according to claim 1, wherein the quantity of the at least
one protrusion structure (1213) of the casing is two, the two protrusion structures
(1213) are respectively located at two opposite sides of the casing (100), and the
at least one electrical connector (300) is located between the two protrusion structures
(1213).
7. The docking station (10) according to claim 1, wherein the casing (100) comprises
a support portion (121) and at least one outer positioning portion (122), the accommodation
space (130), the upper surface (1211) and the at least one protrusion structure (122)
are located at the support portion (121), the support portion (121) has an outer circumferential
surface (1212), the outer circumferential surface (1212) is connected to a periphery
of the upper surface (1211), and the outer positioning portion (122) is connected
to the outer circumferential surface (1212) of the support portion (121) and protrudes
from the upper surface (1211).
8. The docking station (10) according to claim 7, wherein the quantity of the at least
one outer positioning portion (122) is two, and the two outer positioning portions
(122) are respectively located at two opposite corners of one side of the support
portion (121).
9. The docking station (10) according to claim 7, wherein the at least one protrusion
structure (1213) has a top surface (1213e), and a height (H1) of the outer positioning
portion (122) relative to the top surface (1213e) is greater than a height (H2) of
the at least one electrical connector (300) relative to the top surface (1213e).
10. The docking station (10) according to claim 1, wherein the casing (100) has two recesses
(1215, 1216), the two recesses (1215, 1216) are respectively located at two opposite
sides of the at least one protrusion structure (1213), and depths (D1, D2) of the
two recesses (1215, 1216) are different from each other.
11. A docking station (10), configured for an electronic device (20) to be docked thereto,
comprising:
a casing (100), having an accommodation space (130), an upper surface (1211) and at
least one protrusion structure (1213), wherein the upper surface (1211) faces away
from the accommodation space (130), the at least one protrusion structure (1213) protrudes
from the upper surface (1211), the at least one protrusion structure (1213) has a
side surface (1213d), the side surface (1213d) has a first straight part (12131d),
a turning part (12132d) and a second straight part (12133d), the first straight part
(12131d) is connected to the second straight part (12133d) via the turning part (12132d),
the first straight part (12131d) and the second straight part (12133d) extend towards
a same direction, and an extension direction of the turning part (12132d) is non-parallel
to extension directions of the first straight part (12131d) and the second straight
part (12133d);
a circuit board (200), located in the accommodation space (130); and
at least one electrical connector (300), protruding from the upper surface (1211)
of the casing (100) and electrically connected to the circuit board (200).